When exposed to high temperatures and pressure, water enters a state in which liquid and gas can no longer be distinguished.

Researchers at Ruhr University Bochum, Germany, have shed light on the structure of supercritical water. In this state, which ...

The typical size of atoms and small molecules is around 1 × 10-10 m (0.1 nm). For example: diameter of a hydrogen atom, H 1.0 × 10-10 m width of a hydrogen molecule, H 2 2.9 × 10-10 m ...